Informal reports sometimes describe body-composition changes after 4 to 6 weeks, while animal studies measured changes over 11 to 28 days
Individuals who are pregnant, breastfeeding, or have certain medical conditions may not qualify
For maintenance, most patients receive one injection every 2 to 3 months
However, it should, by no means, be considered a substitute for prescription from a certified doctor or a trustworthy doctor-patient relationship
Clinical trials involving approximately 900 participants found that the adverse event profile was indistinguishable from placebo for most parameters
Injections can improve memory, focus, and mental clarity, particularly in individuals with B12 deficiency